Applied Materials Today, Journal Year: 2024, Volume and Issue: 39, P. 102342 - 102342
Published: July 26, 2024
Language: Английский
Nano Letters, Journal Year: 2024, Volume and Issue: 24(12), P. 3826 - 3834
Published: March 18, 2024
Lightweight, easily processed, and durable polymeric materials play a crucial role in wearable sensor devices. However, achieving simultaneously high strength toughness remains challenge. This study addresses this by utilizing an ion-specific effect to control crystalline domains, enabling the fabrication of triboelectric material with tunable mechanical properties. The dense crystal-domain cross-linking enhances energy dissipation, resulting boasting both tensile (58.0 MPa) (198.8 MJ m–3), alongside remarkable 416.7% fracture elongation 545.0 MPa modulus. Leveraging these properties, is successfully integrated into self-powered devices, real-time feedback on human joint movement. work presents valuable strategy for overcoming strength-toughness trade-off materials, paving way their enhanced applicability broader use diverse sensing applications.
Language: Английский
Citations
41
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154883 - 154883
Published: Aug. 23, 2024
Language: Английский
Citations
25
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 10, 2024
Abstract Supramolecular hydrogels are typically assembled through weak non‐covalent interactions, posing a significant challenge in achieving ultra strength. Developing higher strength based on molecular/nanoscale engineering concepts is potential improvement strategy. Herein, super‐tough supramolecular hydrogel by gradually diffusing lignosulfonate sodium (LS) into polyvinyl alcohol (PVA) solution. Both simulations and analytical results indicate that the assembly subsequent enhancement of crosslinked network primarily attributed to LS‐induced formation gradual densification strong crystalline domains within hydrogel. The optimized exhibits impressive mechanical properties with tensile ≈20 MPa, Young's modulus ≈14 toughness ≈50 MJ m⁻ 3 , making it strongest lignin‐PVA/polymer known so far. Moreover, LS provides excellent low‐temperature stability (<‐60 °C), antibacterial, UV‐blocking capability (≈100%). Interestingly, diffusion ability demonstrated for self‐restructuring damaged hydrogel, 3D patterning surfaces, enhancing local freeze‐thaw PVA goal foster versatile platform combining eco‐friendly biocompatible PVA, paving way innovation interdisciplinarity biomedicine, materials, forestry science.
Language: Английский
Citations
24
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Jan. 2, 2025
Language: Английский
Citations
5
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 9, 2025
Abstract Eutectogels represent promising materials for technological applications due to their excellent ionic conductivity, thermal and electrochemical stability, nonvolatility. Nonetheless, most existing eutectogels suffer from low strength toughness. Herein, a strategy broadly alter the mechanical properties of by tuning aggregation states polymer chains through specific hydrogen bond network deep eutectic solvent is reported. The prepared exhibit exceptional properties, including record‐breaking toughness (203.38 MJ m −3 ) (31.53 MPa), outperforming even toughest reported surpassing synthetic polymers such as PDMS, rubber, natural spider silk. By tailoring solvent's careful selection number types bonding functional groups, can be precisely tuned across wide range. Specifically, tensile adjusted 8.19 31.53 MPa, 69.84 203.38 , modulus 3.38 13.01 MPa. Given diversity solvents, proposed allows rational design hydrogen‐bond networks further optimize eutectogels, providing versatile approach controlled preparation high‐strength, tough eutectogels.
Language: Английский
Citations
2
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(18)
Published: March 11, 2024
Abstract Gel‐polymer electrolyte (GPE) is a pragmatic choice for high‐safety sodium batteries but still plagued by interfacial compatibility with both cathode and anode simultaneously. Here, salt‐in‐polymer fibers NaF salt inlaid in polylactide (PLA) fiber network was fabricated via electrospinning subsequent situ forming gel‐polymer liquid electrolytes. The obtained PLA‐NaF GPE achieves high ion conductivity (2.50×10 −3 S cm −1 ) large Na + transference number (0.75) at ambient temperature. Notably, the dissolution of occupies solvents leading to concentrated‐electrolyte environment, which facilitates aggregates increased anionic coordination (anion/Na >1). Aggregates higher HOMO realize preferential oxidation on so that inorganic‐rich stable CEI covers cathode’ surface, preventing particles’ breakage showing good different cathodes (Na 3 V 2 (PO 4 , 2+2x Fe 2‐x (SO 0.72 Ni 0.32 Mn 0.68 O NaTi ). While, passivated induced lower LUMO aggregates, surface tension between interface, dendrites‐free anode. As result, assembled || cells display excellent electrochemical performance all‐climate conditions.
Language: Английский
Citations
17
ACS Nano, Journal Year: 2024, Volume and Issue: 18(35), P. 24095 - 24104
Published: Aug. 16, 2024
Recently, certain challenges and accompanying drawbacks have emerged in the preparation of high-strength tough polymer hydrogels. Insights from wood science highlight role intertwined molecular structure lignin crystalline cellulose contributing to wood's strength. Herein, we immersed prestretched poly(vinyl alcohol) (PVA) hydrogels into a solution nanosized lignosulfonate sodium (LS), water-soluble anionic polyelectrolyte, creatively reconstruct this similar at scale The LS effectively fixed bundled PVA polymers while inducing formation dense domains within matrix. Consequently, interwoven conferred good strength composite hydrogels, exhibiting tensile up ∼23 MPa, fracture strain ∼350%, Young's modulus ∼17 toughness ∼47 MJ/m
Language: Английский
Citations
16
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(18), P. 10435 - 10508
Published: Sept. 16, 2024
The mechanical properties of polymer gels devote to emerging devices and machines in fields such as biomedical engineering, flexible bioelectronics, biomimetic actuators, energy harvesters. Coupling network architectures interactions has been explored regulate supportive characteristics gels; however, systematic reviews correlating mechanics interaction forces at the molecular structural levels remain absent field. This review highlights engineering gel a comprehensive mechanistic understanding regulation. Molecular alters architecture manipulates functional groups/moieties level, introducing various permanent or reversible dynamic bonds dissipative energy. usually uses monomers, cross-linkers, chains, other additives. Structural utilizes casting methods, solvent phase regulation, mechanochemistry, macromolecule chemical reactions, biomanufacturing technology construct tailor topological structures, heterogeneous modulus compositions. We envision that perfect combination may provide fresh view extend exciting new perspectives this burgeoning also summarizes recent representative applications with excellent properties. Conclusions are provided from five aspects concise summary, mechanism, biofabrication upgraded applications, synergistic methodology.
Language: Английский
Citations
14
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 21, 2024
Abstract MXenes, a burgeoning family of 2D materials with high conductivity and large specific surface area, are ideal electromagnetic absorbing materials. However, the ample polar functional groups lead to poor dispersion in non‐polar matrix, limiting its application non‐polar‐polymer‐based composites. With help shear rheological properties SiO 2 , conflict is resolved here by directly dispersing MXene aqueous into resin. Water locked dynamically through nanoparticles among MXene@SiO nanosheets, suppressing MXene's self‐restacking aggregation resin matrix. Therefore, fabrication uniform MXene/non‐polar polymer composites achieved. Meanwhile, this method allows different (Fe 3 O 4 etc.) be evenly dispersed nanosheets further improve composites' parameters. The as‐prepared achieve remarkable performance low concentration (≤5 wt.‰). SMEP‐h achieves maximum reflection loss value over 60 dB at 12 GHz (at thickness 2.15 mm), SMEP‐F possesses broad effective bandwidth 6.18 1.75 mm). shear‐rheological‐assisted matrix paves an avenue for design outstanding MXene‐based
Language: Английский
Citations
13
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 9, 2024
Abstract Developing versatile ionoelastomers, the alternatives to hydrogels and ionogels, will boost advancement of high‐performance ionotronic devices. However, meeting requirements bio‐derivation, high toughness, stretchability, autonomous self‐healing ability, ionic conductivity, reprocessing, favorable recyclability in a single ionoelastomer remains challenging endeavor. Herein, dynamic covalent supramolecular design, lipoic acid (LA)‐based (DCIE), is proposed via melt building adaptive networks with hierarchically bonding (CAN‐HDB), wherein lithium bonds aid dissociation ions integration disulfide metathesis, bonds, binary hydrogen enhances mechanical performances, capability, recyclability. Therefore, trade‐off among versatility, successfully handled. The obtained DCIE demonstrates remarkable stretchability (1011.7%), toughness (3877 kJ m −3 ), conductivity (3.94 × 10 −4 S −1 outstanding reprocessing for 3D printing, desirable Significantly, selective ion transport endows multisensory feature capable generating continuous electrical signals high‐quality sensations towards temperature, humidity, strain. Coupled straightforward methodology, abundant availability LA HPC, as well multifunction, DCIEs present new concept advanced conductors developing soft ionotronics.
Language: Английский
Citations
13